Artikel: Influence of hook type on performance, hooking location, injury, and reflex action mortality predictors in float recreational angling for cyprinids: A case study in northeastern Poland
Fisheries research. 2022 May 25,
2022
Abstract: One of the elements critical to the success of catch-and-release fisheries is the use of appropriate gear that permits releasing fish safely. To date, not all fish species have been the focus of comprehensive studies on this topic, and this applies to ... ...
| Abstract | One of the elements critical to the success of catch-and-release fisheries is the use of appropriate gear that permits releasing fish safely. To date, not all fish species have been the focus of comprehensive studies on this topic, and this applies to cyprinids. Fish from this family are distinct because of their pharyngeal teeth and the particular way they ingest food. We evaluated the impact of hook type on cyprinid catch rates (further catch per unit effort (CPUE)), the size of the fish caught, and the welfare of the fish released. Quickly assessing immediate reactions with reflex action mortality predictors (RAMP), we determined the consequences of recreational angling with barbed J-hooks, barbless J-hooks, and circle hooks. During the study, 1,066 fish were caught that belonged to eight native cyprinid species. Hook type did not have a significant impact on the fishing index with the mean CPUE ranging from 14.4 (circle hook) to 17.2 (barbed J-hook). The size of the fish caught also did not depend on hook type. However, hook type influenced the efficiency of hook removal, which was the lowest for circle hooks (45.6%) and the highest for barbless hooks (63.7%). Dehooking time was linked significantly with hook type, hook location, and fish species. The longest dehooking time was noted for fish caught with barbed J-hooks. Anatomical hooking locations did not differ in the fish caught with J-hooks, while the hooking location of circle hooks differed significantly in comparison to that of the J-hooks. Deep hooking in fish caught with circle hooks occurred decidedly less frequently as did tissue damage. Bleeding occurred more frequently in fish that exhibited impaired reflex action mortality predictors. Fish caught with circle hooks exhibited the least impaired reflexes. The differences in the build of the anterior part of the cyprinid digestive system and the manner in which theses fishes take up food did not exclude using circle hooks. |
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| Schlagwörter | Cyprinidae ; case studies ; fish ; mortality ; pharynx ; research ; Poland |
| Sprache | Englisch |
| Erscheinungsverlauf | 2022-0525 |
| Erscheinungsort | Elsevier B.V. |
| Dokumenttyp | Artikel |
| Anmerkung | Pre-press version |
| ZDB-ID | 406532-3 |
| ISSN | 0165-7836 |
| ISSN | 0165-7836 |
| DOI | 10.1016/j.fishres.2022.106390 |
| Datenquelle | NAL Katalog (AGRICOLA) |
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